SKU: 28APE190373 / AI4204 Category:


  • Standard Calibration Solution Set for Apera Instruments Infrared Turbidimeters (TN400 and TN480)
  • AMCO Clear® Turbidity Standard Solutions (20.0 NTU, 100 NTU, 400 NTU, 800 NTU).
  • AMCO Clear® is an EPA approved primary standard for turbidity sensor calibration that is safe, non-toxic and disposable. It is easy to use, requires no dilution or resuspension, and is available in a wide range of values.

The standards have a guaranteed shelf life of one year, even if you have opened the bottle and not tightly closed again.

The convenient submicron polymer suspensions are non-toxic primary calibration standards approved by the US EPA for drinking water analysis for turbidity.


*Store at room temperature. Never freeze.